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CHICAGO (Sun-Times Media Wire) - About 200 ComEd customers remain without power after thunderstorms swept through the Chicago area Tuesday night.

These customers should have their power back between 7 and 8 p.m. Wednesday night, said ComEd spokesperson John Schoen. About 15,000 were without power at the peak of the storms.

A series of tornado, severe storm and flash flood warnings were issued for most of northern Illinois Tuesday night.

Between 1 and 3 inches of rain fell in an hour across parts of the Chicago area before the storms tapered off, according to the National Weather Service.

Downstate, a tornado touched down about six miles south and southwest of Pontiac in Livingston County about 5:10 p.m., according to the National Weather Service, citing information relayed by Illinois State Police.

Also, a lightning strike may have caused a house fire in west suburban Darien that caused roughly $150,000 in damage.

Firefighters were called to the 1500 block of Pineview Court at 7:56 p.m. Tuesday and found heavy fire coming out of the attic and a second floor window, according to a statement from the Darien-Woodridge Fire District.

Everyone inside made it out of the home safely, after neighbors alerted them to the fire, fire officials said. Most of the fire was extinguished within 20 minutes.

Damage to the home was estimated at $150,000, and the structure is not inhabitable, the fire department said.